121011222102 has 64 divisors (see below), whose sum is σ = 253765564416. Its totient is φ = 38436733440.

The previous prime is 121011222083. The next prime is 121011222119. The reversal of 121011222102 is 201222110121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1816963 + ... + 1882385.

It is an arithmetic number, because the mean of its divisors is an integer number (3965086944).

Almost surely, 2^121011222102 is an apocalyptic number.

121011222102 is an abundant number, since it is smaller than the sum of its proper divisors (132754342314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121011222102 is a wasteful number, since it uses less digits than its factorization.

121011222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65645.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121011222102 its reverse (201222110121), we get a palindrome (322233332223).

The spelling of 121011222102 in words is "one hundred twenty-one billion, eleven million, two hundred twenty-two thousand, one hundred two".